smartlist 3.15-22 / var / list / .bin / confirm

#!/bin/sh

# $Id: confirm,v 1.3 1999/03/11 13:00:33 szhrew Exp szhrew $
# $Log: confirm,v $
# Revision 1.3  1999/03/11 13:00:33  szhrew
# Obsolete comment deleted
#
# Revision 1.2  1999/03/11 12:23:09 
# Changing the command for creating a cookie due to problems with
# the date command on other OS's.
#

##  Author:
##      Werner Reisberger     <werner@free.de> 
##  Description:
##    confirm allows (un)subscriptions to mailing lists running with  
##    SmartList  depending on a confirmation. If automatic subscription is 
##    not allowed the confirmation can be done by the list maintainer(s).
##---------------------------------------------------------------------------##
##    
##    Copyright (C) 1998   Werner Reisberger  <werner@free.de>
##    Copyright (C) 1997   Michelle Dick <artemis@rahul.net> and
##                         Werner Reisberger  <werner@free.de>
##
##    This program is free software; you can redistribute it and/or modify
##    it under the terms of the GNU General Public License as published by
##    the Free Software Foundation; either version 2 of the License, or
##    (at your option) any later version.
##
##    This program is distributed in the hope that it will be useful,
##    but WITHOUT ANY WARRANTY; without even the implied warranty of
##    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
##    GNU General Public License for more details.
##
##    You should have received a copy of the GNU General Public License
##    along with this program; if not, write to the Free Software
##    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
##---------------------------------------------------------------------------##

test=test		# /bin/test
echo=echo		# /bin/echo
cat=cat			# /bin/cat
sed=sed			# /bin/sed
grep=grep		# /bin/grep
date=date		# /bin/date
ls=ls                   # /bin/ls
rm=rm                   # /bin/rm
mkdir=mkdir             # /bin/mkdir
formail=formail		# /usr/local/bin/formail
multigram=multigram 	# ../.bin/multigram

$test -z "$listaddr" &&
 $echo "Don't start this script directly, it is used in rc.request" && exit 64

tmprequest=tmp.request
tmpfrom=tmp.from
confirmtxt=confirm.txt
US=$1

$test -d cookies || $mkdir cookies

case "$X_ENVELOPE_TO" in
  *$list-request*) wrongaddress="" ;;
  *) wrongaddress="WARNING:
	Please try to use '$listreq'
	the next time when issuing (un)subscribe requests.
" ;;
esac

subscraddr=""

if [ "$US" = "unsub" ]
then

address=`$formail -k -xSubject: |
$sed -n -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/' \
  -e '/^[        ]*[^    a-z]/ q' \
  -e 's/^[^@]*del[       ]*'\
'[^      ]*[     ]\([^   ]*[-a-z0-9_][@!][a-z][^         ]*\).*/\1/p' \
  -e 's/^[^@]*unsub[   ]*'\
'[^      ]*[     ]\([^   ]*[-a-z0-9_][@!][a-z][^         ]*\).*/\1/p' \
  -e 's/^[^@]*unsubscribe[   ]*'\
'[^      ]*[     ]\([^   ]*[-a-z0-9_][@!][a-z][^         ]*\).*/\1/p' `


# create an cookie...this is u for unsubscribe, the date plus the pid
COOKIE="u`$date +%m%d%H%M%S`$$"

else

address=`$formail -k -xSubject: |
 $sed -n -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/' \
  -e '/^[	 ]*[^	 a-z]/ q' \
  -e 's/^[^@]*add[	 ]*'\
'[^	 ]*[	 ]\([^	 ]*[-a-z0-9_][@!][a-z][^	 ]*\).*/\1/p' \
  -e 's/^[^@]*address[	 ]*'\
'[^	 ]*[	 ]\([^	 ]*[-a-z0-9_][@!][a-z][^	 ]*\).*/\1/p' \
  -e 's/^[^@]*sub[	 ]*'\
'[^	 ]*[	 ]\([^	 ]*[-a-z0-9_][@!][a-z][^	 ]*\).*/\1/p' \
  -e 's/^[^@]*subscribe[	 ]*'\
'[^	 ]*[	 ]\([^	 ]*[-a-z0-9_][@!][a-z][^	 ]*\).*/\1/p' `

fi

fromaddr=`$cat $tmpfrom`

for a in $address ""
do
  if $test -z "$subscraddr"
  then
     case $a in
	$listreq|$listaddr) ;;
	?*) subscraddr=$a
	   $echo " $subscraddr" >$tmpfrom ;;
     esac
  fi
done

subscraddr=""	# let multigram eliminate trailing and leading punctuation

address=`$formail -k -xSubject: <$tmprequest |
 $multigram -b1 -x$listreq -x$listaddr -l$off_threshold $tmpfrom |
 $sed -e 's/^ *[^ ]* *[^ ]* *[^ ]* *\([^ ]*\)/\1/' `

for a in $address ""
do
  $test -z "$subscraddr" && subscraddr=$a
done

$test -z "$subscraddr" && subscraddr=$fromaddr

if  [ "$US" != "unsub" ]
then

if $test -f subscreen
then
  ./subscreen "$subscraddr" || exit 1
fi

# create a fairly unique cookie...this is the date plus the pid
COOKIE="s`$date +%m%d%H%M%S`$$"

# log the attempt
$echo "$0: subscription request from $fromaddr for"
$echo "`cat $tmpfrom` - assigned cookie $COOKIE" >> log

else

$echo "$0: unsubscription request from $fromaddr for"
$echo "`cat $tmpfrom` - assigned cookie $COOKIE" >> log

fi

# create cookie file in cookies directory containing the address
# to be subscribed
$echo $subscraddr > cookies/$COOKIE

$grep '^Subject: Re:' <$tmprequest >/dev/null &&
  wrongaddress="${wrongaddress}WARNING:
	Send in a new mail, INSTEAD OF REPLYING
	the next time when issuing (un)subscribe requests.
"
  
  if [ "$US" = "sv" ]; then

  authaddr=`$echo $maintainer|sed 's/,/ /g'`
  
  else

  authaddr=$subscraddr

  fi


( $formail -i"From: SmartList <$listreq>" -rtA"X-Loop: $listaddr" \
           -I"Subject: CONFIRM $COOKIE" <$tmprequest 

  $test ! -z "$wrongaddress" && $echo "$wrongaddress" && wrongaddress=""

  $echo "It has been requested that the following address:"
  $echo ""
  $echo "       $subscraddr"
  $echo ""

  if [ "$US" = "unsub" ]; then
  
  $echo "should be deleted from the $list mailing list."
  $echo ""
  $echo "It has NOT yet been unsubscribed from the list."
  $echo "To unsubscribe you need to confirm the unsubscription"

  else

  $echo "should be added to the $list mailing list."
  $echo ""
  $echo "The address has NOT yet been subscribed to the mailing list."
  $echo "To subscribe you need to confirm the subscription"

  fi

  $echo "request by sending an email to the address:"
  $echo ""
  $echo "        $listreq"
  $echo ""
  $echo "with the Subject string:"
  $echo ""
  $echo "         CONFIRM $COOKIE"
  $echo ""
  $echo "With a reasonable good email program a reply to this" 
  $echo "message should be sufficient"
  $echo ""

  $cat $confirmtxt
  $echo ""

  $rm -f _dummy_ `$ls -td cookies/* | $sed -e '1,'$maxcookies' d' `

  $sed -e 's/^/>/' $tmprequest
) | $SENDMAIL $sendmailOPT $authaddr